10 Rhodora [JANUARY 
crispate at the mouth, the lobes rounded, entire: capsule borne on a 
short stalk; spores 41-48 u in diameter, brown, in some cases reg- 
ularly reticulate with 11-13 polygonal meshes on convex face, usually 
irregularly furcate-lamellate without distinct meshes ; lamellae low and 
thin, deeply pigmented in lower part and in the regions of anastomosis, 
often paler on the edges, projecting slightly on the margins of the 
spore as short, often indistinct points; elaters very irregular, with 2 
or 3 spirals. 
East Haven, Connecticut (Evans). New Jersey (Austin). Eustis, 
Florida (Underwood), 
Fossombronia salina differs from F. angulosa in its inflorescence and 
in its leaf-cells, which are not markedly elongated at the base of the 
leaf. The spores of the European species also are a little smaller, 
they are very regularly reticulate with fewer meshes (mostly 7 to ro 
on the convex face of the spore), the lamellae are higher and thinner, 
and their pale free margins are very distinct, appearing as a translu- 
cent wing on the margin of the spore. 
Of the two other species of /ossombronia which have been found in 
New England, the common X. foveolata Lindb. (F. Dumortieri Lindb.) 
bears the most resemblance to F. sa/ina. This species, however, is smal- 
ler and is an annual, developing its sexualorgans in the summer and its 
capsules in the autumn of the same year. Its spores are very like those 
of F. salina and are of about the same size, but they tend to 
be more regularly reticulate, and the meshes of the reticulum are 
smaller and more numerous (usually numbering from r5 to 20 on the 
convex face of the spore). The much rarer F. Wondracsekii (Corda) 
Dumort. (F. cristata Lindb.), now known from both New Hampshire 
and Connecticut, is also an annual plant, similar in general ap- 
pearance to Æ. foveolata. Its spores are a little smaller than those 
of 7. salina and have very different markings; their lamellae, which 
are much finer and more numerous, tend to be parallel as seen from 
one side of the spore but anastomose somewhat in the middle of the 
convex face, often forming a few irregular meshes in this region. 
YALE UNIVERSITY. 
